Backup 2.0

Drop in ideas

• Support incremental backups & restore.
• Support 1-activity backup.
• Support anonymisation of personal data on backup.
• Separate process and progress.
• XML format doesn't need to be radical different (IMO).
• Support restore of old (1.9 only?) backups.
• Hook in backup & restore to intercept & support other formats (BB, IMS-CC...)
• One code base both for manual and scheduled backup
• Scheduled restore
• Fileless export/import
• Export/import over mnet
• OOP.
• Secure (don't handle non-allowed data, user matching on restore, salted passwords..)
• Safe (some sort of "rollback" on failure - requires to have everything annotated somewhere - backup_ids or so).
• file-less backups - if you have separate backups, import/export etc.
• Allow to backup one category of courses (at the same time, one zip per course). MDL-17187
• Allow to mark courses to be excluded from scheduled backup manually.
• Avoid anti-timeout output when not running from browser. MDL-17282
• Review related caps, cleaning them and adding missing bits, improving sec. consistency.
• Log all backups (both manual and scheduled). Improve logging in general.